Rotary explosive-engine.



No.. 373,916. EATENTED'DEG, 17, 1907` l G. J, WEBER.

EQTAEY EXPLOSIVE ENGINE.

APE'LIQATION EI'LED* 1320.2. 1904.

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Gode zwar @joe raed '2 SHEETS-SHEET 2.

PATENTLD DEG. 17,1907.

G. J. WRBRR. ROTARY RXPLOSIVR ENGINE. APPLIUAIION FILED DEO. 2. 1904.

mtornepz 'V i sas City, in the vcounty of Jackson and State A UNITED STATES GEORGE J.wEBER, OF lKANSAS o'ITY, MISSOURI. Y

ROTARYl ExPLosrvE-ENGINE.

Specication of Letters Patent.

patented Dee. 17, 1907.

Application filed December 2. 1904. Serial No. 235.215.

To all whom tt'may concern.'

Be it' known that I, GEORGE J. WEBER, a

citizen of the United States, residing at vKanof Missouri, have invented certain new and useful Improvements in Rotary Explosive- Engines, of which the following is a specification.

My invention relatesvto improvementsin explosive engines.

The object of my invention 1s to provide an explosive engine having a piston.' and an explosion chamber, with means for admitting a charge into the explosion chamber, means for igniting the chargeI in the explosion chamber,

means for prevent-ing the expansion o the.

ignited charge, untilit has attained its maximum pressure, and means for then permitting it to .expand against the piston. this mechanism the full expansive forceof the ignited charge suddenly impinges against the ist'on,.instead of having the force reduced 'by movementv ofthe pistonbefore the highest attainable pressure. of the. charge has been obtained. .n

My invention is applicable particularly to explosive engines of the type having a rotary l piston, that iis, engines of the turbine tYDe. *I' v My invention provides further, acon'- struction in which a rotary piston is provided with a luralityof blades topreceive the force of the c arge combined with means for igniting the charge and preventing the expansion of the ignited charge until it has attained its greatest explosive force, and then providing means for' permitting the ignited charge to expand against the lades of the piston.

iiyinvention 4providesA further, a construction 'in which one or more of the constituents of the chargeis Erst' compressed, then ignited, and prevented from expanding until the maximum expansive force is attained, and 'then permitted to expand vin contact with the piston.

My invention provides further a construction 'in which one or more of theconstituents of the charge is highly compressed, means'for then commingling therewith lanother con- 'stituen't of the charge, the admixture of which causes'ignition of the combined mixture due to the heat evolved by. the compressionyof part yof the charge, and means by which the ignited charge suddenly impinges against the piston.

ByA

My invention' 1provides further, the cornpressing of the c arge to a degree in-which suiiicient heat is developed to cause ignition of the charge, retainin the ignited charge from expansion until t e maximum explosive pressure is attained and then permitting the ignited charge to expand in contact with the piston.

My invention provides -certainlotlier features of novelty hereinafter Ydescribed and Fig. 2 is a vertical sectional view taken` on the dotted line a-b of Fig. 1, some of the arts being shown in elevation. Fig. 3 is va ront elevation view of some of the larts controllingr the entrance and exit of t e charge into and from the explosion chamber. this -view the parts are shown in dotted lines in the' positions occupied by themwhen the valves controlling the .ports inthe explosion chamber are in the posltions shown in Fig. 1. In solid lines in this view the parts are shown in the positions occupied bythem-when the valves controlling the said ports have moved so as to cover the inlet port. In this view is also shown a modiiied means for retracting the valve controlling the outlet port of the explosion chamber. Fig. 4is a'front elevation View of the engine, showing the parts in the positions occupied by them when the valves controlling the ports of the explosion chamber are as shown in Fig. 1.. The compressing pump mechanism is shown partly in vertical section in this view. Fig. 5 is a top view of the engine with a ortion ofthe parts in-horizontal section.v Fig. 6 is a top view of part of the mechanism connected with the valve Fig. 9 is a similarv "means, for injecting fuel therein in addition to the inlet port. Fig. 1 1 is a front elevation View of a modified form of cam.

Similar characters of reference indicate similar parts.

the vcasing of' the engine.

l In the 'drawings I have illustrated my invention as applied to a rotary engine of the turbine type.

1 indicates a cylindrical piston provided with a plurality of peripheral )ockets 2 and mounted upon and rotatable with a rotatable shaft 3 mounted in suitable bearings inthe casing 4 which encircles the piston 1 and is provided with a hollow water space 5 emliracing thc part of the casing forming the cylinder 6 lin which the piston is mounted.

l Connected by an outlet port 7 with the cylinder 6 is the explosionchamber 8 provided with an inlet port 9 connecting the explosion chamber with the supplementalchamber 1() in which is oscillatively mounted a rock valve 11 adapted-to open and close the port 9. In .the explosion chamber is oscillativcly mountedv a rock valve 12 adapted to cover aud uncover the ports 7 and 9, The face oll the valve 12 is sufficiently wide to cover both said ports simultaneously. Each ofthe valves 11 and 12 is provided with an annular groove 13 in which the charge is received. Between the ends of said groove is the valve face 14 comprising a radial extensionthe outer surface of which is fitted to the interiorwof the chamber in which the valve is located, Each valve is hollow and provided with a horizontal tubular extension 15 which ext-ends through the casing and has mounted on it a cap 16 provided with a tubular outlet 17. lbxtending through each cap 16, extension 15, and into the-holl0w space in the'valve, is a horizontal tubelS through which a'cooling fluid, as water, is injected into the valve'. The cooling fluid thenpasses out the valve through the extension 15, ca 16, and tubular outlet 17. Encircling eac 1 extension stem 15 is a' spring 19, the outer end of which bears against the cap 16 and the inner end of which bears against The tension of each of the springs 19 is such that the valves 11 vand v12 are drawn tightly against the inner wall kof the casing, thus preventing leakage l of the gas around the stems 15.

Rocking or reciprocating motion isiimparted to the valves 11 and 12 in the following manner: A horizontal rock shaft 20extending through-the casing isconnected with the forV ard end of thevalve 12 and rocking therewith. The outer end of said rock shaft has mounted thereon and rocking therewith a bell crank lever 21, to one arm ofwhich is pivotally connected a connecting bar 22, the- )a` er end of which is pivotally connected with the upper end of a bar 23, reciprocativelT mounted in a hole providedvm the vguide 24 extending outwardly from the forward side of the casing. Upon the lower end of the bar 23 is mounted a roller 25 which forms an antifriction bearing upon the cam 26 which is mounted on and rotatable with the.

shaft 3. To the arm of the bell crank lever 21 to which is pivoted the connecting bar 22 is connected one end of a spring 27 the other lnd of which is secured to a pin'23 extending orwardly from the casing. The tension of the spring27 is such that the valve 12 will be retracted by it after the valve hasbeen rotated to cover the port 7, by means of the cani 26 and mechanismjust described. It being desirable to .regulate the degree to which the port 7 is uncovered by the valve l12 to obtain the greatest efficiency in the expansion of the ignited charge in the explosion chamber, l provide on the -bell crank lever 21 an arm 29 which is adapted to strike a horizontal screw 30 Amounted in a screw threaded hole in a projection 31 on the forward side of the'casing. The projection 31 is disposed at the right of thel arm 29, as viewed in Fig. 4, so that the rocking of the arm 29 in that direction is checked bythe screw 30. By adjusting the screw the stroke in one direction of the valve 12 over the port 7 is regulated. A lock nut 32 may be mounted on the screw 3() so as to bear against the projection 31. Extending forwardly through the casing is another rock shaft 33, secured 4to and oscfflatable with-the valve 11. Upon the forward part of the rock shaft 33 outside the casing ispivotally mounted a bell crank lever 34, one arm of which is provided with a forwardly extending pin 35, to which is pivotally connected one end of a rod 36, the other end of which is connected pivotally with 'one of the arms of the bell crank lever 21. On the other arm of the bell crankl lever 34 is ivoted one end vof a pawl 37, the other end o which is adapted to engage a tooth 33 provided on a leverA 39 which is mounted on and keyed to the rock shaft 33. The other end of the lever 39 has pivoted to it thev upper end of a rod 4() the lower end of which is pivoted to a istonA 41 reci rocatively mounted in a cylin er 42,y

secure to the forward side of the casing. The piston 41 and cylinder 42 serve as a dash pot to slow the movement downward of the'piston, the piston 41 serving to close the valve 11 after it'has been opened by lreason of the rockingv of the bellcrank lever 21 and parts connected therewith and `already described. y

When the engine is running slowly thecam 26, through the connecting mechanism described, rocks'thebell crank leverv 34 forward and backward with each rotation of the piston 1, and with each4 movement to the right of the bell crank lever 34, as viewed in Fig. 4, the pawl 37 is caused to engage, the

l tooth 38 and carry with it the lever 39, thus which then enters the explosion chamber'S. I

After the charge has entered the chamber 8, it is exploded, both valves being then closed,

after whichthe valve 12is opened, and the 'charge passes through theport 7 into the cylinder', where itimpinges against the blades onthe plston and'causes rotation of the p is ton 1.' After each explosion and escape into 'the'. cylinder 6 of the charge, the valve 12 is retracted by the cam 26 and parts connected therewith," and caused tocover the port 7 at which timethe valve 11 is rocked so as to uncover the l port 9 4so. as to receive a fresh chiigle into the ex losion chamber 8.

' en the s ee of rotation of the piston 1 has reached t ieproper limit; it is desirable to hold the valve 11 closed so as to vrevent the passage V:into theexplosi'on cham er 8 of any charges while the proper speed of rotation of the 4:piston `is retained. To accomplish this I rrount on the rock shaft 83 a lever 43,

disposed outside the lever 39l and provided with an inclined'upper .side ladapted to'be brought incont'actwith a pin 44 on the pawl 37 and raisethe pawlso thatit will miss the tooth-3 8 on the leverQ, vand thus miss rocking thevalve 11 -in'a direction inwhich the or t9.would be opened. When the speed is ow thelever 43 isin-a position such 4that the inclined 'ilupper side Y will notiy make v contact with 'the 'pin 44 on thefpawl. 37... When the` eedof' thepiston rises tothe proper limit SP any`fsu1t'able governing f-mechamsm, not

- shownyrhayfbe' Vcaused Vto move theI arm 45 pivotedfto `one end of theA lever 43 in a direc.

tion such -thatthe inclined face thereof will engage the-pin 44 and lift the a'wllfromengagement with'the tooth 38l v y this mechF anism'thev charge-1 admitted 'may be varied in volume, the amount of uncovering of the port 9 by the valve 11 depending upon the time that the pawl. 37 is raisedby the lever 43, which time depends upon the position of the lever 4'3. Any desirable mechanism for regulating the movementV ofthe arm'45 may p be employed.A

` ble therewith isan, eccentric collar'4'6,l which Compression of the chargeis' obtained-.als-

follows z-Mounted on the shaft 34 and rotatais embraced by the upper end ofla cam rod 5./47, the lower end offwhichis pivoted to the upper end of a barv 48, the lower end `of which' is secured `to the upper sideof a vertically reciprocable piston 49, mounted in a cylindery 50 secured to the forwardside of the casing ".4,l and closedfat-the bottom and open at the top.` Connected to the lower part of the cyli 55 ,inder 50, are two check'. valve casings51 and 52, each of which is providedwitha plug 53,

` i' removably fitted in the easing above avalve opening The said rvalvelopening'gs are convtrolledrespectively by the'v'alves 54-and54jf 1 which are verticali .movable in the plugs 53,

onezin each-.of'sai plugs. As the piston 49 i's'raise'djair is-dr'awn through the valve cas-4 ing 51 aslrthev valve 54 and into the cylinder,

i the va v ef54 being then closed.V 'As `thepisf-`r ton 49 descends theairis forced past the at its outer end, A'the. r exit orifice lso disposed that the two branches vvalve l54 through the valve casing 52 and through a conducting pipe 56 into a storing chamber 57, the valve 54. being then closed. A pipe 58 is connected at one end with the chamber 57 an`d.at the other end with one end of a valve oasing'59 the other end being connected to the pipe 6() extending through the casing 4 and discharging into the supplemental chamber 10'. lThe valve casing 59 is pauses through the port 9 into the explosion chamber 8.l Thelvalves 11 and 112 are then moved'so as to close the port9, the valve 12 still cveringthe port 7. When the fluid .admittedto the' explosion chamber is air` alone, fuelJ suchas oil, may'then be admitted into theexplosion chamber through `a pipe shown-in Fig; '10, and caused to mingle with the highly ,compressed air.- The heat of the compressed 'airthen ignites the mixture at which time chef-pressure risesto the. maxi?. muni,I theignited ,charger being prevented from expanding immediately. The valve v12 is thenrocked by means of the spring 27,

bell crank lever 21 andshaft' 20 so as to uncover'the port 7. The distance moved by the valve in this direction is regulated by the screw .3Q-.coming into contactwith' the arm By adjusting the screw.

29 on the-lever 21. 30, when the'engine is running, the throw of the-valve may be regulated in a manner to secure the?. greatest efficiency from the fuel used.. The port7 isv referably bifurcated Aiiranch 64 having its 'of the port -may simultaneously impinge against two blades 'on the piston. By this l'arrangementof thevalve 12 and the port 7 lthe.expans ive power of the charge is fully appropriated to4 drive thepiston.

l Instead vof igniting the charge by the liberation of heat due to compression of the air, Vthe charge maybe ignited by any other t means,` as, for instance, by a jump spark.

'.For this purpose-al wire"65 1s connected to the outer end of an electrode 66 located. in and protected -by the insulation 67 from the me-y tallic plug 68 which is mountedv in a screw threaded openingextending through the casing into the explosion chamber 8. The inner end of the plug is provided with an electrode 69 disposed adjacent to but not. touching the inner l'end ofthe electrode 66. Awire 70 has Aone end connected with a 4U-shaped metallic spring 71 mounted upon but insulated by insulati'on 72-from a projection 73 extending .-forwardlyifrom-the front of the casing 4.'

of the screw 74 when the rod 22 descends and c after the valve 12 is closed over the two ports 7 and 9. By 4adjusting the position of the screw 74 upon the spring 71 while the engine is running, the proper time for igniting the charge is obtained.

Any suitable source of electric current may Vbe employed for obtaining the jump spark between the electrodes 66 and A69, the two wires 65 and 70 being interposed and. forming part of the electric circuit. in which the current is passed. From the contact plate 76 the circuit is completed through'the` 'en gine to the electrode 69 by means of the rod or bar 22, bell crank lever 21, rock shaft 20,

casing 4 and plug 68. 1f desired, a portion only of the fuel vmay be "mixed with the air before the same'is' compressed by injecting it into the inlet opening in the valve casing 51 through a pipe 77 connected with some suitable fuel supply. If desired, all of the fuel may b e drawn into the chamber 57 from this source and the pipe 78 leading to the explosion chamber, and shown in Fig. 10, dispensed with.

To prevent leakage from casing 4 around the rock shafts 20.and I33, each of said rock shafts is provided inside the casing with a flange 79 which is forced by the force of the gas pressure tightly against the inner wall of the casing forming'the supplemental chamber and the explosion chamber. Leakage from the other ends of said chambers is prevented as already described.

As shown in'Fig. 3, other means than the spring 27 may be employed to retract the valve 12 to uncover the port 7. 'Pivoted to the same place on the lever 21, to which the spring 27 is secured when used, is-the upperv end ofa rod-80, the lower end of which is pivotally connected to the upper end of a piston 81,"reciprocatively mounted in a cylinder 82, secured tothe forward side of the casing 4. The weight of the piston 81 serves to retract the valve 12 through the intermediacy of the connecting mechanism described. Air

outlet for air may be provided, as indicated,

by 83 in the wall of the cylinder 82, below the A similar air-outlet maybe propiston 81. vided in the cylinder 42. When the valve 12 is in the position `shown in Fig. 1, the roller 25 is on the arcuate portion of the cam 26, as shown/in Fig. 4, and at this time the charge is being admitted into i the explosion chamber 8. .As soon as the cam so moves, that the wheel or roller 25 passes 0H this portieri of the cam, the camv the front' of the.

l roller 25 will drop into a recessed portion of the cam indicated by 84. This recessed` ora tion 84 is so shaped that the roller 25 wi l be held from descending further for a brief period at which time the `valve 12 will have moved to the left, as viewed in Fig. 1, and will cover both ports 7 and 9. At this time the contact plate 76'will strike the screw 74 inl the spring 71, thus completing the circuit through the engine, and permitting the jump spark to pass between the electrodes 66 and 69, and ignite the'charffe, which, at this time is isolated in the ex losion chamber. The charge being thus iso ated and held from expanding when ignited will attain at once its maximum pressure. The cam 26 continuing to'move forward, the roller 25 will drop suddenly off the recessed portion 84 .of the cam, and the sprin 27 will still further 4retract the valve 12 unti the arm 29 strikes thc screw 30, at which time the' valve 12 will have nncovered the port 7 and the ignited charge will issue 'through the port 7 at its greatest pressure. The valve 11, in addition to regulating the feeding of charges to the explosion chamber, also serves as a further means for preventing the ignited charge from igniting the gas in the supplemental chamber 10. As an additional safeguard the check valve 62 is provided, so that in the event that the ignited charge did pass through the inlet 9, the

-ignited gas in the supplemental chamber could not ignite the compressed mixture in the storing chamber 57 .v

` In Fig. 11 1 have shown a modified form.

of cam in which two arcuate surfaces areV u'sed instead of one to raise the roller 25. Two recessed portions 84 are employed in the cam, which is indicated by 85. With a two point cam, such as this one, the valve 12 is rocked twice during each rotation of the iston 1. The valve 11 may thus also be roc red twice during each rotation of the piston, thus permitting two charges to enter the explosion chamber 8 during one revolution of the piston. The power-of the engine may thus be increased over what is acquired by using the form of cam hereinbefore described.4

As noted in Fig.l 1, the cylinder 6 is provided near the bottom with an outlet open-` ing 86 for the escape of the products of coinbustion.

My invention may be modified in different ways without departing from its spirit.

Having thus described my invention, what I claim and desire to securey by Letters` Pat- 1. In explosive engines, the combination with the cylinder, of an ex losion chamber provided with an inlet port fldr admitting the charge Vand having an outlet port connecting the explosion chamber With the cylinder, a rocking valve controlling both orts, means for moving the valveso as to c ose the inlet port after the charge is admitted andso as to o en the outlet port, and means for igniting the explosion chamber with the cylinder, a `valvel controlling both ports, means for rocking the said valve, and means independent of the running of the engine for regulating the degree that the outlet port is uncovered.

3. In. explosive engines, the combination with the cylinder, of an explosion chamber provided with an inlet for admitting the1 charge and having an outlet port connecting the explosion chamber with the cylinder, a

rocking valve mounted in the explosion chamber and provided with a face broad enough to simultaneously cover both ports, means for rocking the said valve over the said ports, and means for igniting the charge when the ports are both covered.

` 4. In explosive engines, the combination with the cylinder, of an explosion chamber provided with an inlet. for admitting the charge and provided with an outlet through which the iull charge in the chamber ees-V capes after each explosion and'connecting the Iexplosion chamber with the cylinder, a rocking valve for opening and closing the said outlet, means for igniting' the charge when the valve is in a closed position, and means for rocking said valve' independently of the pressure of the charge inthe explosion chamber, I

5. In explosive engines, the combination with the cylinder, of an explosion chamber providedwith an outlet connecting the said chamber with the cylinder, means for exploding a charge admitted to the explosion chamber, a supplemental chamber rovided with an outlet connecting the sai sup lemental chamber with the explosion cham er -and provided with an inlet for admitting the charge into the supplemental chamber, .a

valve controlling the said inlet, a rockingv alve controlling the outlet of thesupplemental chamber, and means by which the inlet and youtlet to the explosion chamber may be held closed during an'explosion.

6. In explosive engines, the combination.

with thefcylinder, of an explosion chamber provided with an loutlet connecting lthe said.

chamber with. the cylinder, means `for exe;

ploding the charge in the combustion cham-` ber, a rocking valve controlling the said outlet, a supplemental Vchamber provided with: e an outlet connecting with the explosion "l chamber, a valve Acontrolling thisv outlet,

means for admitting a charge into the suplemental chamber, means for actuating iioth of said lvalves so as to simultaneously retain closed the outlets controlled by them,

and means by which the valve in the explo.

7. In explosive engines, the combination i with the-cylinder, of an explosion chamber Aprovided with an outletconneeting the. said chamber with the cylinder, apiston movabl mounted in the cylinder, a conductor for a mitting the charge to the explosion chamber, a valve actuated independently of the pressure in the ex lesion chamber control* ling thev assage o the charge through the said con uctor, a valve controlling the outlet of the explosion. chamber, means acti` atedby the movement of the piston for moving the said valves in one direction, andmeans for, moving independently of each other the said valves in theF opposite direction.`

8. In explosive engines, the combination with'the cylinder, of an explosion chamber provided with an outlet connecting the saidchamber with the cylinder, a piston movably mounted in the cylinder, a supplemental chamber having an inlet for admitting the charge therein and having an outlet connecting with the explosion chamber, two oscil- 1latory valves, one controlling .the outlet of the combustion chamber and the other controlling .the outlet of the supplemental chainber, means actuated by the vmovement of the piston for oscillating the said valves in one direction, and means for oscillating the said valves in the opposite direction.

9. In explosive engines, the combination with the cylinder, of an explosion chamber provided with an outlet connectingthe said 100 chamber with the cylinder and provided with an inlet for admitting the charge, two roeking valves, one adapted to cover the outlet and the other the inlet of the explosion chamber, a piston movably mounted in the 105 cylinder, means connected with the piston for rocking the said two valves in one direction, and means for moving the said valves in the opposite direction.

1`O. InA explosive engines,the combination 110 of said valves may be moved lin one direction,

means for moving the said valves in the oppposite direction, and means for igniting the charge in the explosion chamber when both valvesarein a'clos'ed position.

11. In explosiveengines, the combination with a cylinder, of a piston rotatably mounted therein, an explosion chamber having an outlet connecting with the cylinder for conlveving the ignited charge against the rotatable piston, andprovided with an inlet for admitting fluid composing the charge, a rockcharge in the explosion chamber when the said inlet and outlet are closed.

12. In explosive engines, the combination with the cylinder provided with an outlet for burned. gas, of a piston rotatably mounted in the cylinder and provided With a plurality of blades, an explosion chamber having an inlet for admitting the charge and provided with an outlet connecting With the cylinder for conveying the ignited charge against the said blades on the piston, a rocking valve, means for moving the said valve so as to open and close the inlet and the outlet of the explosion' chamber, and means for igniting the charge in the explosion chamber when the outlet thereof is closed. I

13'. In explosive engines, the combination with the piston, of an explosion chamber provided with a discharge port having its outlet disposed so as to discharge against the piston and provided with means for admitting a charge into the explosion chamber, [a rocking valve for coverin Jr and uncovering the said port independently of th'e pressure of the charge, means for igniting the charge when the valve is in the ,closed position, and means for then releasingthe entire charge against the piston.

- 14. In explosive engines, the combination with the piston, of an explosion chamber provided With an inlet and an outlet port the outlet port being so disposed as to discharge against theA piston, a yrocking valve for cover ing and 'uncovering both ports and so disposed as to have the ignited charge force it to its seat, and means for igniting the charge When the valve is in a position covering both ports.` y

15. In explosive engines, the combination With a piston, Aofan explosion chamber provided Witli an outlet discharging against the piston, a valve controlling said outlet, a conductor for conveying uid to the explosion chamber, a valve controlling the passage of fluid through said conductor, means foractuating both valves independentlyof each other andindependently of the pressure in the expansion chamber, means controlled by the speed of running of the engine for regulat-ing the action of the valve cont-rolling the passage of fluid through the said conductor, and means for i niting the. charge When 'the outlet valve is c osed.

charging against the piston two rocking valves one controlling the outlet-andv the "other the inlet tothe explosion chamber,

means for openingvand closing the valve lcontrolling the outlet, means for' opening and closing the' valve controlling the inlet indesure in the explosion chamber, and means for igniting the charge when both valves are in the closed position. 'A

17. In explosive engines, the combination with the rotatable piston, of a cylinderhaving an outlet and having mounted therein the said rotatable piston, an explosion chamber having an inlet and having an outlet connecting with the said cylinder, an oscillatory vvalve controlling independently. of the pressure in the explosion chamber the said outlet means for iffniting the charge in the exf ,c v -b D plosion chamber when the said valve is in the closed position, and means for opening theV valve after ignition and releasing the entire charge against the piston.

1.8. In explosive engines, the combination with the cylinder, of a combustion chamber provided with an outlet connecting said,

chamber with the cylinder, a rotary piston in the cylinder having blades adapted to pass vconsecutively op osite said outlet when the piston is rotate( a supplemental chamber having an inlet. for admitting the charge thereinand having an outlet connecting with the combustion chamber, tWo rocking valves,

one controlling the outlet of the combustion chamber and the other controlling the outlet ofthe supplemental chamber, means actuated'by the movement of the piston for rock.

ing 'said valves in one direction, and means for rocking saidvalves in the other direction.

19. In ex losive engines, the combination with the cy inder, of an explosion chamber having an outlet connecting with said cylinder and having an inlet forl admitting the charge, two rocking valves, one controlling the outlet and the other the inlet of the explosion chamber, xa rotary piston in the cylinder having blades adapted to pass opposite said outlet when the piston is rotated, means connected With the piston for oscillating said valves in one direction, and meansfor moving the valves in the opposite direction. 20. In explosive engines, the combination with the cylinder, of the piston` mounted therein, an'explosion chamber having an out# letconnecting With' the, cylinder and having an inlet for admitting the charge, two rocking valves one controlling the outlet and the other. the inlet rof vthe explosion chamber, means. actuated by the movement of the piston for r'ocking'sa'id valves in one direction, saidactuatingA means providing that the valve lcontrollin the outletvmay be moved independently o? the movement of the other valve, and means'for moving the valves in the opposite direction.

21. In explosive engines, the combination with the cylinder, of the combustion chamber having an outlet connecting with the cyl-j V with a cylinder, of a combustion chamber4 opening said valves.'

, pendently of 'the pressure in the combustion charge, of the piston rotatively mounted in the cylinder and having blades adapted, when the piston is rotated, to pass opposite said outlet, two valves one controlling the outlet and the other the inlet, means aetnated independently of the pressure in the combustion chamber for closing said valves independently of each other, means for igniting the charge in the combustion chamber when both valves are closed, and means for 22. In explosive engines, the combination having an outlet connecting fwith the cylinl der, and having an inlet for the admission of the charge,- a piston movable in said cylinder, two valves one controlling said outlet and the other said inlet, means actuated indechamber for closing vsaid Valves independently of each other, means for igniting the charge when both valves are closed,'and means for opening said valves.V

23. In explosive engines, the combination with a cylinder, of a combustion chamber having an outlet connecting with the cylinder, and having an inlet for admitting the l charge, a piston movable in said cylinder, l

two valves one controlling said outlet and the other said inlet, means for igniting said charge when both valves are in the closed positions, means actuated independently oi the pressure in the combustion chamber and controlled by the 4piston for opening and closing said valves independently of each other.

2 4. In explosive engines, the combination with a cylinder, of a combustion chamber having an outlet connecting with the cylinder and having lan inlet for admitting the charge, a piston rotatively mounted in the cylinder and having blades adapted to ass opposite-said outlet, two valves .controiiing lone the outlet and the other said inlet, means for igniting the charge when both valves are closed and means actuated lndependently of the pressure 1n the combustion chamber and controlled. by the piston for opening and closing said-valves independently of each other.

In testimony whereof I aHiX my signature in presence of two witnesses.

j GEORGE J. WEBER. Witnesses:

WARREN D. HOUSE, HENRYl F, BOSE. 

